package base

  1. Overview
  2. Docs
package base
Legend:
Library
Module
Module type
Parameter
Class
Class type

Character operations.

type t = char

An alias for the type of characters.

include sig ... end
val all : t list
include Identifiable.S with type t := t
include sig ... end
val hash_fold_t : Hash.state -> t -> Hash.state
val hash : t -> Hash.hash_value
val t_of_sexp : Sexp.t -> t
val sexp_of_t : t -> Sexp.t
include Stringable.S with type t := t
val of_string : string -> t
val to_string : t -> string
include Comparable.S with type t := t
include Comparable_intf.Polymorphic_compare with type t := t
include Comparisons.Infix with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int

compare t1 t2 returns 0 if t1 is equal to t2, a negative integer if t1 is less than t2, and a positive integer if t1 is greater than t2.

val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int

ascending is identical to compare. descending x y = ascending y x. These are intended to be mnemonic when used like List.sort ~cmp:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val clamp_exn : t -> min:t -> max:t -> t

clamp_exn t ~min ~max returns t', the closest value to t such that between t' ~low:min ~high:max is true.

Raises if not (min <= max).

val clamp : t -> min:t -> max:t -> t Or_error.t
include Comparator.S with type t := t
type comparator_witness
include Comparable_intf.Validate with type t := t
val validate_lbound : min:t Maybe_bound.t -> t Validate.check
val validate_ubound : max:t Maybe_bound.t -> t Validate.check
val validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.check
include Pretty_printer.S with type t := t
val pp : Caml.Format.formatter -> t -> unit
module O : Comparisons.Infix with type t := t
val to_int : t -> int

Return the ASCII code of the argument.

val of_int : int -> t option

Return the character with the given ASCII code or None is the argument is outside the range 0 to 255.

val of_int_exn : int -> t

Return the character with the given ASCII code. Raise Failure if the argument is outside 0 to 255.

val unsafe_of_int : int -> t
val escaped : t -> string

Return a string representing the given character, with special characters escaped following the lexical conventions of Objective Caml.

val lowercase : t -> t

Convert the given character to its equivalent lowercase character.

val uppercase : t -> t

Convert the given character to its equivalent uppercase character.

val is_digit : t -> bool

'0' - '9'

val is_lowercase : t -> bool

'a' - 'z'

val is_uppercase : t -> bool

'A' - 'Z'

val is_alpha : t -> bool

'a' - 'z' or 'A' - 'Z'

val is_alphanum : t -> bool

'a' - 'z' or 'A' - 'Z' or '0' - '9'

val is_print : t -> bool

' ' - '~'

val is_whitespace : t -> bool

' ' or '\t' or '\r' or '\n'

val get_digit : t -> int option

Return Some i if is_digit c and None otherwise.

val get_digit_exn : t -> int

Return i if is_digit c. Raises Failure otherwise.

val min_value : t
val max_value : t
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct